Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sandra Aderhold, RN

Diabetes Educator Registered Nurse in Hagerstown, MD · enumerated 2007 · practices at John G Newby MD P C.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1558494856

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Registry record

Entity type Individual (Type 1)

Name Sandra Aderhold

Credential RN

Sex Female

Practice address 1110 Medical Campus Road, Suite 108, Hagerstown, MD, 21742

Phone (301) 714-4041

Fax (301) 714-4351

Enumeration date Mar 14, 2007

Last updated in NPPES Oct 2, 2008

Taxonomy & licenses

163WD0400X Diabetes Educator Registered Nurse Nursing Service Providers · License R175330 (MD) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Sandra Aderhold's NPI record?

Cross-check NPI 1558494856 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1558494856 active?

Yes, as of the latest NPPES snapshot, NPI 1558494856 is active (record last updated 2008-10-02).

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John G Newby MD P C Anatomic Pathology & Clinical Pathology Physician · Hagerstown, MD NPI 1619907862 Sarah Radwani Physical Therapist · Hagerstown, MD NPI 1639577331

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-10-02.